When we went last year we took loads of things, bacon & cheese & sausage i think. All of which we kept cool in a cooler bag packed inside our cases with lots of ice packs. When we got to
Icmeler we just put everything straight into the fridge.
We also took cereal, super noodles, pringles, hot chocolate sachets, chocolate bars. Most of the stuff didn't get eaten (except the chocolate)
I won't be bothering to take anything this year as we're going bed and breakfast so won't need to think of things for breakfast, and also i don't want to make my cases too heavy.